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G-banding, G banding or Giemsa banding is a technique used in cytogenetics to produce a visible karyotype by staining condensed chromosomes. It is the most common chromosome banding method. [ 1 ] It is useful for identifying genetic diseases (mainly chromosomal abnormalities ) through the photographic representation of the entire chromosome ...
It shows dark and white regions as seen on G banding. Each row is vertically aligned at centromere level. The karyogram shows: - 22 homologous autosomal chromosome pairs - Both the female (XX) and male (XY) versions of the two sex chromosomes. For printing this image as a poster, the suggested size is approximately 47 x 79 cm.
It is the most common chromosome banding method. [61] R-banding is the reverse of G-banding (the R stands for "reverse"). The dark regions are euchromatic (guanine-cytosine rich regions) and the bright regions are heterochromatic (thymine-adenine rich regions). C-banding: Giemsa binds to constitutive heterochromatin, so it stains centromeres ...
G-banding patterns of human chromosome 1 in three different resolutions (400, [14] 550 [15] and 850 [3]). Band length in this diagram is based on the ideograms from ISCN (2013). [16] This type of ideogram represents actual relative band length observed under a microscope at the different moments during the mitotic process. [17]
G-banding patterns of human chromosome 17 in three different resolutions (400, [12] 550 [13] and 850 [3]). Band length in this diagram is based on the ideograms from ISCN (2013). [14] This type of ideogram represents actual relative band length observed under a microscope at the different moments during the mitotic process. [15]
G-banding patterns of human chromosome 12 in three different resolutions (400, [12] 550 [13] and 850 [3]). Band length in this diagram is based on the ideograms from ISCN (2013). [14] This type of ideogram represents actual relative band length observed under a microscope at the different moments during the mitotic process. [15]
It shows dark and white regions as seen on G banding. Each row is vertically aligned at centromere level. It shows 22 homologous autosomal chromosome pairs, both the female (XX) and male (XY) versions of the two sex chromosomes, as well as the mitochondrial genome (at bottom left).
G-banding patterns of human chromosome 13 in three different resolutions (400, [12] 550 [13] and 850 [3]). Band length in this diagram is based on the ideograms from ISCN (2013). [14] This type of ideogram represents actual relative band length observed under a microscope at the different moments during the mitotic process. [15]